CWCheat, PS1 games and Gameshark codes

Hi there

I have recently been using CWCheat and I have Gran Turismo 2 v1.2 for which I wish to use some Gameshark codes which can be found here - http://pupik-gt2.tripod.com/codes/buy-any-car.htm

Problem is they don't seem to work.

I know these codes work on a PS1 using gameshark as I've downloaded a save from Gamefaqs with the Mercedes CLK Race car in.

The particular one I am trying to use is this -

D01C353C D5D8
801C3194 115C
D01C322C D5D8
801C3196 E0DC

Please could someone advise me how to use this with CWCheat.

Thanks in advance for any help on this. :)

Apologies if I've posted this in the incorrect forum as well, I'm kinda new to the site.